The dietary guidance for someone living with HIV is more or less the same as for anyone else. It is important to keep an eye on your cholesterol so cutting down on processed meats, fats and sugars could be beneficial.
It is also important to have a balanced diet that includes the main food groups to include carbohydrates, protein and dietary fibre as well as limited amounts of fats, and in particular saturated fats.
If you have concerns about your diet, or smoking and alcohol intake, then you could speak to your GP.